ATE204304T1 - HIGH DENSITY ETHYLENE POLYMERS WITH INCREASED STRESS CRACKING RESISTANCE AND METHOD FOR THE PRODUCTION THEREOF - Google Patents

HIGH DENSITY ETHYLENE POLYMERS WITH INCREASED STRESS CRACKING RESISTANCE AND METHOD FOR THE PRODUCTION THEREOF

Info

Publication number
ATE204304T1
ATE204304T1 AT96106354T AT96106354T ATE204304T1 AT E204304 T1 ATE204304 T1 AT E204304T1 AT 96106354 T AT96106354 T AT 96106354T AT 96106354 T AT96106354 T AT 96106354T AT E204304 T1 ATE204304 T1 AT E204304T1
Authority
AT
Austria
Prior art keywords
cracking resistance
stress cracking
hdpe
production
high density
Prior art date
Application number
AT96106354T
Other languages
German (de)
Inventor
Juergen Dr Schellenberg
Heinz-Juergen Dr Kerrinnes
Bernd Dr Hamann
Gerd Fritzsche
Original Assignee
Buna Sow Leuna Olefinverb Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buna Sow Leuna Olefinverb Gmbh filed Critical Buna Sow Leuna Olefinverb Gmbh
Application granted granted Critical
Publication of ATE204304T1 publication Critical patent/ATE204304T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms

Abstract

The prepn. of HDPE polymers with a high stress cracking resistance (I) comprises reacting HDPE with a density of 0.935-0.970 g/cm<3> and a melt index (MFI 190/49N) of 0.01-80 g/10 mins. (II) in the melt at 160-270 degrees C for the usual residence time in a screw extruder, with the addn. of (A) 0.05-5 wt% (w.r.t. total mixt.) of (meth)acrylate with a 2-16C side chain and a functionality of 2 w.r.t. polymerisable gps., and (B) 0-15 wt% (w.r.t. amt. of A) solid or liq. chain transfer agent, and with thorough homogenisation of the mixt. Also claimed are (i) HDPE with a high stress cracking resistance (I), obtd. by this process; and (ii) HDPE-based moulding materials contg. (I).
AT96106354T 1995-04-27 1996-04-23 HIGH DENSITY ETHYLENE POLYMERS WITH INCREASED STRESS CRACKING RESISTANCE AND METHOD FOR THE PRODUCTION THEREOF ATE204304T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19515449A DE19515449A1 (en) 1995-04-27 1995-04-27 High density ethylene polymers with increased stress crack resistance and process for their preparation

Publications (1)

Publication Number Publication Date
ATE204304T1 true ATE204304T1 (en) 2001-09-15

Family

ID=7760473

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96106354T ATE204304T1 (en) 1995-04-27 1996-04-23 HIGH DENSITY ETHYLENE POLYMERS WITH INCREASED STRESS CRACKING RESISTANCE AND METHOD FOR THE PRODUCTION THEREOF

Country Status (3)

Country Link
EP (1) EP0739908B1 (en)
AT (1) ATE204304T1 (en)
DE (2) DE19515449A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701888A1 (en) 1997-01-21 1998-07-23 Alsthom Cge Alcatel System for the optical transmission of information

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001172A (en) * 1972-04-03 1977-01-04 Exxon Research And Engineering Company Polymers with improved properties and process therefor
US3953655A (en) * 1972-04-03 1976-04-27 Exxon Research And Engineering Company Polymers with improved properties and process therefor
FR2270273A1 (en) * 1974-05-10 1975-12-05 Ato Chimie Stress-crack resistant polymer compsns - comprising polyethylene grafted with acrylic monomers
JPS61272217A (en) * 1985-05-29 1986-12-02 Ube Ind Ltd Polyolefin resin composition
EP0340566B1 (en) * 1988-05-02 1994-09-21 General Electric Company Reactive graft polymers
JPH05269946A (en) * 1992-03-25 1993-10-19 Mitsubishi Petrochem Co Ltd Thermoplastic polymer laminated matter
GB9308669D0 (en) * 1993-04-27 1993-06-09 Du Pont Canada Grafting of monomers onto polyolefins in presence of organic peroxides
JPH0741524A (en) * 1993-07-30 1995-02-10 Showa Denko Kk Polyethylene/amino acrylate film and production thereof

Also Published As

Publication number Publication date
DE19515449A1 (en) 1996-10-31
EP0739908B1 (en) 2001-08-16
EP0739908A3 (en) 1998-04-22
DE59607475D1 (en) 2001-09-20
EP0739908A2 (en) 1996-10-30

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee